[PATCH] virtio: vdpa: fix snprintf size argument in snet_vdpa driver

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



The buffer size and the size passed to snprintf don't match, causing
clang warnings.

This patch increases a little bit the size of the buffer, and uses
sizeof() to get the buffer size.

This patch should be applied on top of the following patch:

virtio: vdpa: new SolidNET DPU driver,
by Alvaro Karsz alvaro.karsz@xxxxxxxxxxxxx

Reported-by: Nathan Chancellor <nathan@xxxxxxxxxx>
Signed-off-by: Alvaro Karsz <alvaro.karsz@xxxxxxxxxxxxx>
---
 drivers/vdpa/solidrun/snet_main.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/vdpa/solidrun/snet_main.c b/drivers/vdpa/solidrun/snet_main.c
index d438a89b359..9ceacf96de0 100644
--- a/drivers/vdpa/solidrun/snet_main.c
+++ b/drivers/vdpa/solidrun/snet_main.c
@@ -540,7 +540,7 @@ static const struct vdpa_config_ops snet_config_ops = {
 
 static int psnet_open_pf_bar(struct pci_dev *pdev, struct psnet *psnet)
 {
-	char name[25];
+	char name[50];
 	int ret, i, mask = 0;
 	/* We don't know which BAR will be used to communicate..
 	 * We will map every bar with len > 0.
@@ -558,7 +558,7 @@ static int psnet_open_pf_bar(struct pci_dev *pdev, struct psnet *psnet)
 		return -ENODEV;
 	}
 
-	snprintf(name, SNET_NAME_SIZE, "psnet[%s]-bars", pci_name(pdev));
+	snprintf(name, sizeof(name), "psnet[%s]-bars", pci_name(pdev));
 	ret = pcim_iomap_regions(pdev, mask, name);
 	if (ret) {
 		SNET_ERR(pdev, "Failed to request and map PCI BARs\n");
@@ -575,10 +575,10 @@ static int psnet_open_pf_bar(struct pci_dev *pdev, struct psnet *psnet)
 
 static int snet_open_vf_bar(struct pci_dev *pdev, struct snet *snet)
 {
-	char name[20];
+	char name[50];
 	int ret;
 
-	snprintf(name, SNET_NAME_SIZE, "snet[%s]-bar", pci_name(pdev));
+	snprintf(name, sizeof(name), "snet[%s]-bar", pci_name(pdev));
 	/* Request and map BAR */
 	ret = pcim_iomap_regions(pdev, BIT(snet->psnet->cfg.vf_bar), name);
 	if (ret) {
-- 
2.32.0

_______________________________________________
Virtualization mailing list
Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx
https://lists.linuxfoundation.org/mailman/listinfo/virtualization



[Index of Archives]     [KVM Development]     [Libvirt Development]     [Libvirt Users]     [CentOS Virtualization]     [Netdev]     [Ethernet Bridging]     [Linux Wireless]     [Kernel Newbies]     [Security]     [Linux for Hams]     [Netfilter]     [Bugtraq]     [Yosemite Forum]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux Admin]     [Samba]

  Powered by Linux